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CVE-2022-50760— drm/amdgpu: Fix PCI device refcount leak in amdgpu_atrm_get_bios()

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于amdgpu_atrm_get_bios中未减少PCI设备引用计数，可能导致引用计数泄漏。

AI Predicted 3.3 Difficulty: Theoretical EPSS 0.30% · P21

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux d38ceaf99ed015f2a0b9af3499791bd3a3daae21< 6611feef35c0c8c4d297b28a7fc6ab3a2c47eca7 affected
d38ceaf99ed015f2a0b9af3499791bd3a3daae21< da7c78ea9e62bb65273d3ff19a3866ec205bfe18 affected
d38ceaf99ed015f2a0b9af3499791bd3a3daae21< 3360125d721c91d697c71201f18f042ff743e936 affected
d38ceaf99ed015f2a0b9af3499791bd3a3daae21< 981024abf5fe605c94d4f906f65d1b3408d628be affected
d38ceaf99ed015f2a0b9af3499791bd3a3daae21< 7c1ddf7c664b5bc91f14b1bdeaa45520ef1760e4 affected
d38ceaf99ed015f2a0b9af3499791bd3a3daae21< 8f2d2badf8ca5e7e7c30d88840b695c8af7286f3 affected
d38ceaf99ed015f2a0b9af3499791bd3a3daae21< 9d4057d0452243917e12eb19f1599c96f2f05b14 affected
d38ceaf99ed015f2a0b9af3499791bd3a3daae21< a8b54ad7106c0604c4adc4933138b3557739bce0 affected
… +12 more rows
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I. Basic Information for CVE-2022-50760

Vulnerability Information
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Vulnerability Title
drm/amdgpu: Fix PCI device refcount leak in amdgpu_atrm_get_bios()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix PCI device refcount leak in amdgpu_atrm_get_bios() As comment of pci_get_class() says, it returns a pci_device with its refcount increased and decreased the refcount for the input parameter @from if it is not NULL. If we break the loop in amdgpu_atrm_get_bios() with 'pdev' not NULL, we need to call pci_dev_put() to decrease the refcount. Add the missing pci_dev_put() to avoid refcount leak.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于amdgpu_atrm_get_bios中未减少PCI设备引用计数，可能导致引用计数泄漏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux d38ceaf99ed015f2a0b9af3499791bd3a3daae21 ~ 6611feef35c0c8c4d297b28a7fc6ab3a2c47eca7 -
Linux Linux 4.2 -

II. Public POCs for CVE-2022-50760

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III. Intelligence Information for CVE-2022-50760

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Other References for CVE-2022-50760 (5)

Same Patch Batch · Linux · 2025-12-24 · 322 CVEs total

CVE-2025-68741 9.8 CRITICAL scsi: qla2xxx: Fix improper freeing of purex item
CVE-2023-53867 9.8 CRITICAL ceph: fix potential use-after-free bug when trimming caps
CVE-2025-68726 9.8 CRITICAL crypto: aead - Fix reqsize handling
CVE-2025-68745 9.8 CRITICAL scsi: qla2xxx: Clear cmds after chip reset
CVE-2023-54094 9.8 CRITICAL net: prevent skb corruption on frag list segmentation
CVE-2023-54090 9.8 CRITICAL ixgbe: Fix panic during XDP_TX with > 64 CPUs
CVE-2023-54076 9.8 CRITICAL smb: client: fix missed ses refcounting
CVE-2022-50717 9.8 CRITICAL nvmet-tcp: add bounds check on Transfer Tag
CVE-2025-68359 9.8 CRITICAL btrfs: fix double free of qgroup record after failure to add delayed ref head
CVE-2023-53996 9.3 CRITICAL x86/sev: Make enc_dec_hypercall() accept a size instead of npages
CVE-2023-54071 8.8 HIGH wifi: rtw88: use work to update rate to avoid RCU warning
CVE-2023-54120 8.8 HIGH Bluetooth: Fix race condition in hidp_session_thread
CVE-2023-54043 8.8 HIGH iommufd: Do not add the same hwpt to the ioas->hwpt_list twice
CVE-2022-50732 8.8 HIGH staging: rtl8192u: Fix use after free in ieee80211_rx()
CVE-2023-54092 8.8 HIGH KVM: s390: pv: fix index value of replaced ASCE
CVE-2023-54060 8.8 HIGH iommufd: Set end correctly when doing batch carry
CVE-2025-68736 8.8 HIGH landlock: Fix handling of disconnected directories
CVE-2023-54040 8.8 HIGH ice: fix wrong fallback logic for FDIR
CVE-2023-53986 8.6 HIGH mips: bmips: BCM6358: disable RAC flush for TP1
CVE-2022-50746 8.4 HIGH erofs: validate the extent length for uncompressed pclusters

Showing top 20 of 322 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-50760

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